CN116609493A - Indentation detection method, laminated cell manufacturing method and device and electronic equipment - Google Patents
Indentation detection method, laminated cell manufacturing method and device and electronic equipment Download PDFInfo
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- CN116609493A CN116609493A CN202310899131.7A CN202310899131A CN116609493A CN 116609493 A CN116609493 A CN 116609493A CN 202310899131 A CN202310899131 A CN 202310899131A CN 116609493 A CN116609493 A CN 116609493A
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- 238000007373 indentation Methods 0.000 title claims abstract description 180
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 90
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 161
- 238000000034 method Methods 0.000 claims abstract description 72
- 230000005856 abnormality Effects 0.000 claims abstract description 50
- 230000002159 abnormal effect Effects 0.000 claims abstract description 48
- 238000004804 winding Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 21
- 238000003475 lamination Methods 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 230000000875 corresponding effect Effects 0.000 description 41
- 238000010586 diagram Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The application provides an indentation detection method, a laminated cell manufacturing device and electronic equipment, wherein one specific implementation mode of the method is used for detecting a composite material belt of a laminated cell, and the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged; it comprises the following steps: under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode pole piece is a cathode pole piece with an indentation; after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring the information of the to-be-detected pole piece corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt; and under the condition that the pole piece information to be detected is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown. The method can accurately judge the shutdown indentation, so that the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced.
Description
Technical Field
The application relates to the technical field of batteries, in particular to an indentation detection method, a laminated cell manufacturing device and electronic equipment.
Background
The laminated cell is mainly used for rechargeable batteries such as lithium ion batteries, lithium polymer batteries and the like. Conventional cells are composed of a plurality of individual battery cells, while laminated cells achieve higher energy densities and better battery performance by stacking the battery cells together.
An anomaly may occur in the laminated cell during fabrication, which may or may not affect cell performance. However, the related art does not distinguish between anomalies or does not accurately distinguish between anomalies, so that it cannot be accurately determined whether it would affect the cell performance.
Disclosure of Invention
The embodiment of the application aims to provide an indentation detection method, a laminated battery cell manufacturing device and electronic equipment, which are used for accurately judging shutdown indentations, so that the probability of mistakenly detecting the shutdown indentations into other anomalies can be reduced, and the accuracy of identifying the anomalies which can affect the performance of the battery cell is improved to a certain extent.
In a first aspect, an embodiment of the present application provides an indentation detection method, where the method is used for detecting a composite material belt of a laminated battery cell, where the composite material belt includes an anode pole piece and a plurality of cathode pole pieces that are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces by a diaphragm; the method comprises the following steps: under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown; after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt; and under the condition that the to-be-detected pole piece information is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown.
In this embodiment, for a composite material belt including cathode pole pieces that are discontinuously arranged, it may be determined that an abnormality occurring on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information. Thus, the shutdown indentation can be accurately determined, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced.
In addition, if the abnormality existing on the lamination battery core is identified to be not the shutdown indentation, the larger possibility of the abnormality can be determined to influence the performance of the lamination battery core, then whether the abnormality actually affects or not can be further judged, the accuracy of identifying the abnormality which can influence the performance of the battery core is improved to a certain extent, and the productivity of the inferior lamination battery core is reduced.
Optionally, after determining that the anomaly on the composite tape is an indentation caused by shutdown in the case that the pole piece information to be detected is matched with the target pole piece information, the method further includes: continuing to process the composite strip if the indentations meet the indentation conditions; the indentation conditions include: the indentation size is within the set size range. Therefore, when the indentation meets the indentation condition, the composite material belt can be continuously processed without discarding or repairing the composite material belt, so that the production efficiency is improved to a certain extent, and the cost is saved.
Optionally, the set size range of the indentation size includes: the length is below 80 mm and the indentation width is below 10 mm. Thus, if the shutdown indentation is within this range, it can be considered that the indentation does not cause performance degradation of the laminated cell.
Optionally, the method further comprises: and under the condition that the pole piece information to be detected is not matched with the target pole piece information, judging that the abnormality on the composite material belt is a foreign matter. Therefore, under the condition that the information of the pole piece to be detected is not matched with the information of the target pole piece, the anomaly on the composite material belt is judged to be a foreign matter, and then the phenomenon that the lamination battery core is possibly subjected to self-discharge can be determined, so that the foreign matter needs to be removed, and the occurrence probability is reduced.
Optionally, after obtaining the target pole piece information corresponding to the target cathode pole piece located at the processing position on the composite material belt under the condition that the laminated cell manufacturing equipment is stopped, the method further comprises: and storing the shutdown information of the laminated cell manufacturing equipment and the target pole piece information in an associated mode. Thus, the tracing of the cathode pole piece to be detected can be realized.
In a second aspect, an embodiment of the present application provides a method for manufacturing a laminated battery cell, including: in the process of winding the laminated battery cell, under the condition that laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms; after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt; judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information; continuing winding the laminated battery cell under the condition that the indentation meets the indentation condition; the indentation conditions include: the indentation size is within the set size range.
Therefore, the shutdown indentation can be accurately judged in the winding process, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced. And, when it detects the indentation in the set size range, the abnormality can be ignored, and then the composite tape continues to be wound, improving the winding efficiency to some extent.
Optionally, during the winding process of the laminated battery cell, the composite material belt is wound in a Z shape; wherein, the positive pole piece is coiled continuously, the negative pole piece is coiled discontinuously. Thus, the composite material tape can be wound into a Z-shaped lamination cell, and the composite material tape can be selected by a person skilled in the art according to actual requirements.
In a third aspect, an embodiment of the present application provides an indentation detection apparatus, where the apparatus is configured to detect a composite material strip of a laminated battery cell, where the composite material strip includes an anode pole piece and a plurality of cathode pole pieces that are discontinuously arranged, and the cathode pole piece is separated from the anode pole piece by a diaphragm; the device comprises: the first target pole piece information acquisition module is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition that the laminated battery cell manufacturing equipment is stopped; the target cathode plate is provided with an indentation caused by shutdown; the first to-be-detected pole piece information acquisition module is used for acquiring to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at an abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted; and the first indentation judging module is used for judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information. Thus, the shutdown indentation can be accurately determined, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced. And moreover, the accuracy of identifying the abnormality which can affect the performance of the battery cell is improved to a certain extent, and the productivity of the battery cell with the inferior lamination is reduced.
In a fourth aspect, an embodiment of the present application provides a laminated cell manufacturing apparatus, including: the second target pole piece information acquisition module is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition that laminated battery cell manufacturing equipment is stopped in the process of winding the laminated battery cells; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms; the second to-be-detected pole piece information acquisition module is used for acquiring to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted; the second indentation judging module is used for judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information; the winding module is used for continuously winding the laminated battery cell under the condition that the indentation meets the indentation condition; the indentation conditions include: the indentation size is within the set size range.
Therefore, the shutdown indentation can be accurately judged in the winding process, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced. And, when it detects the indentation in the set size range, the abnormality can be ignored, and then the composite tape continues to be wound, improving the winding efficiency to some extent.
In a fifth aspect, an embodiment of the present application provides a laminated cell manufacturing apparatus, including: the programmable logic controller is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition of stopping; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms; the charge-coupled device image sensor is used for acquiring the to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt under the condition that the composite material belt is abnormal after restarting; and under the condition that the pole piece information to be detected is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown. Therefore, the shutdown indentation can be accurately judged through interaction between the controller and the charge-coupled device image sensor, so that the probability that the charge-coupled device image sensor erroneously detects the shutdown indentation as other anomalies is reduced.
In a sixth aspect, an embodiment of the present application provides an electronic device comprising a processor and a memory storing computer readable instructions which, when executed by the processor, perform the steps of the method as provided in the first or second aspects above.
In a seventh aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method as provided in the first or second aspects above.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flowchart of an indentation detection method according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a composite material belt according to an embodiment of the present application;
fig. 3 is a flowchart of a method for manufacturing a laminated battery cell according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a Z-lamination cell according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an S-shaped laminated battery cell according to an embodiment of the present application;
FIG. 6 is a block diagram illustrating a structure of an indentation detecting apparatus according to an embodiment of the present application;
fig. 7 is a block diagram of a laminated cell manufacturing apparatus according to an embodiment of the present application;
fig. 8 is a block diagram of a laminated cell manufacturing apparatus according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device for performing an indentation detection method or a laminated cell manufacturing method according to an embodiment of the present application;
wherein, 1-diaphragm, 1.1-first diaphragm, 2-cathode pole piece, 2.1-first cathode pole piece, 3-anode pole piece, 3.1-first anode pole piece, 4-abnormal position department.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
It should be noted that embodiments of the present application or technical features of embodiments may be combined without conflict.
In the related art, the problem that the abnormality is not distinguished or can not be distinguished accurately, and then whether the abnormality can affect the performance of the battery cell or not can not be judged accurately exists; in order to solve the problem, the present application provides an indentation detection method; further, in the manufacturing process of the laminated battery cell, if an abnormality existing on the laminated battery cell is identified as an indentation caused by shutdown, whether the indentation can cause performance degradation of the laminated battery cell can be further determined; if an anomaly present on the laminated cell is identified as not an indentation, it may be determined that the anomaly may result in reduced performance of the laminated cell. Thus, the shutdown indentation can be accurately determined, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced.
In addition, if the abnormality existing on the lamination battery core is identified to be not the shutdown indentation, the larger possibility of the abnormality can be determined to influence the performance of the lamination battery core, then whether the abnormality actually affects or not can be further judged, the accuracy of identifying the abnormality which can influence the performance of the battery core is improved to a certain extent, and the productivity of the inferior lamination battery core is reduced.
The above related art solutions have drawbacks, which are results obtained by the inventor after practice and careful study, and therefore, the discovery process of the above problems and the solutions proposed by the embodiments of the present application hereinafter for the above problems should be all contributions of the inventor to the present application in the process of the present application.
Referring to fig. 1, a flowchart of an indentation detection method according to an embodiment of the present application is shown. The indentation detection method can be used for detecting a composite material belt of the laminated battery cell, wherein the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through a diaphragm.
As shown in fig. 2, a schematic structural view of a composite tape is shown. The composite strip may comprise an anode electrode sheet 3, a cathode electrode sheet 2, and the two are separated by a separator 1. The anode plates 3 may be arranged continuously or discontinuously, which is not limited herein. The cathode pole pieces 2 are discontinuously arranged. Thus, the abnormality can be distinguished by the cathode sheet 2 at the time of detecting the composite tape.
In some application scenarios, the indentation detection method may be performed by a laminated cell manufacturing apparatus, which detects the composite tape during the process of manufacturing the laminated cell to distinguish between anomalies present on the composite tape. In other application scenarios, the indentation detection method may also be performed by other devices, which may include, for example, a server.
The application is hereinafter applicable, by way of example, to laminated cell manufacturing equipment.
As shown in fig. 1, the indentation detection method includes the following steps 101 to 103.
Step 101, under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown;
in some application scenarios, laminated cell manufacturing equipment may require downtime for some reasons. Such reasons may include, for example, a broken composite strip, an unsatisfactory specification of the cathode or anode electrode sheet, etc.
If the laminated cell manufacturing equipment is shut down in the process of manufacturing the laminated cells, the target cathode pole piece positioned at the processing position on the current composite material belt can be determined. That is, if it is stopped, the target cathode sheet to be processed at the time of the stop can be determined. For example, in fig. 2, if the laminated cell manufacturing apparatus is stopped, it may be determined that the target cathode sheet located at the processing position at the time of the stop is the second cathode sheet from left to right.
Further, the laminated cell manufacturing equipment can acquire the corresponding target pole piece information after determining the target cathode pole piece. The target electrode sheet information may include, for example, picture information, position information, or related manufacturing parameters of the target cathode sheet.
In some application scenarios, the laminated cell manufacturing equipment may be stopped once or may be stopped multiple times, and then, if the laminated cell manufacturing equipment is stopped once, the information of one target pole piece corresponding to the laminated cell manufacturing equipment is obtained; if the machine is stopped for a plurality of times, a plurality of pieces of target pole piece information can be obtained.
After the laminated cell manufacturing equipment is stopped, the composite material belt may be abnormal, or the composite material belt may not be abnormal.
102, after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt;
In some application scenarios, since the composite material strip is composed of the anode pole piece, the cathode pole piece and the separator, the composite material strip of the same section may include the separator, the anode pole piece and the cathode pole piece of the same length (i.e., the length of the section of the composite material strip), and then if any one of the three is abnormal, the section of the composite material strip may be regarded as abnormal, and the section of the composite material strip may be regarded as the abnormal position. For example, in fig. 2, if an abnormality occurs in the first anode tab 3.1, the first cathode tab 2.1, or the first separator 1.1 located in the same segment, the segment of the composite material tape may be regarded as an abnormal position 4. In this case, the anode electrode sheet located at the abnormal position 4 may be regarded as the first anode electrode sheet 3.1, the cathode electrode sheet located at the abnormal position 4 may be regarded as the first cathode electrode sheet 2.1, and the first separator 1.1 located at the abnormal position 4 may be regarded as the first separator.
After the position of the abnormal position is determined, the laminated battery cell manufacturing equipment can determine the cathode pole piece to be detected at the abnormal position and acquire the corresponding pole piece information to be detected. For example, in fig. 2, the first cathode sheet 2.1 of the composite material belt located at the abnormal position 4 may be determined as a cathode sheet to be detected, and the corresponding information of the cathode sheet to be detected may be obtained. The information of the to-be-detected electrode slice can comprise information such as picture information, position information or related manufacturing parameters of the to-be-detected cathode slice.
And step 103, judging that the anomaly on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information.
After determining that the composite material belt is abnormal, determining a corresponding cathode pole piece to be detected on the abnormal composite material belt, and acquiring corresponding pole piece information to be detected so as to match the pole piece information to be detected with the target pole piece information determined in the step 101.
In some application scenarios, the laminated cell manufacturing apparatus may determine whether there is target pole piece information that matches the pole piece information to be inspected. If only one piece of target pole piece information exists, and the piece of pole piece information to be detected is identical to the piece of target pole piece information, the piece of pole piece information to be detected and the piece of pole piece information to be detected are matched, and then the abnormality on the composite material belt can be judged to be a shutdown indentation. If a plurality of pieces of target pole piece information exist and the piece information to be detected is the same as one of the pieces of target pole piece information, the pieces of target pole piece information and the piece information to be detected can be regarded as matching, and then the abnormality on the composite material belt can be judged to be the shutdown indentation.
In this embodiment, for a composite material belt including cathode pole pieces that are discontinuously arranged, it may be determined that an abnormality occurring on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information. Thus, the shutdown indentation can be accurately determined, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced.
In addition, if the abnormality existing on the lamination battery core is identified to be not the shutdown indentation, the larger possibility of the abnormality can be determined to influence the performance of the lamination battery core, then whether the abnormality actually affects or not can be further judged, the accuracy of identifying the abnormality which can influence the performance of the battery core is improved to a certain extent, and the productivity of the inferior lamination battery core is reduced.
In some optional implementations, after determining that the anomaly on the composite tape is an impression caused by shutdown in the case that the piece information to be inspected matches the target piece information in step 103, the method further includes step 104: continuing to process the composite strip if the indentations meet the indentation conditions; the indentation conditions include: the indentation size is within the set size range.
In some application scenarios, indentations meeting certain conditions do not degrade the performance of the laminated cell. Specifically, the laminated cell manufacturing apparatus may determine that the indentation satisfies the indentation condition, and then may treat the composite tape continuously, as the indentation does not reduce the performance of the laminated cell. In these application scenarios, the above-mentioned indentation conditions may include that the indentation size is within a set size range. For example, it may include the length of the indentation being within a length-set dimension, the width of the indentation being within a width-set range, and/or the depth of the indentation being within a depth-set range, etc.
In some application scenarios, the set size range may be determined in advance, for example, according to empirical values. Indentations within a set size range determined based on the empirical values do not degrade the performance of the laminated cells.
In the implementation mode, when the indentation meets the indentation condition, the composite material belt can be continuously processed without discarding or repairing the composite material belt, so that the production efficiency is improved to a certain extent, and the cost is saved.
In some alternative implementations, the set size range of the indentation size includes: the length is below 80 mm and the indentation width is below 10 mm.
In some application scenarios, the set size range may include a set length range and a set width range. In particular, it may comprise a length of 80 mm or less and an indentation width of 10 mm or less. That is, it may have a length of 80 mm or less and a width of 10 mm or less.
In this embodiment, if an indentation having a length of 80 mm or less and an indentation width of 10 mm or less is detected, it can be considered that the indentation does not cause performance degradation of the laminated cell.
It should be noted that this implementation is only an example, and the above-described setting ranges may relate to the pole piece size, the impact of the indentation size on performance, and the like. For example, if the specification of the pole piece is 150 mm by 150 mm, the length is below 80 mm, and the indentation width is below 10 mm, the performance of the laminated cell is not reduced.
In some alternative implementations, the method further includes: and under the condition that the pole piece information to be detected is not matched with the target pole piece information, judging that the abnormality on the composite material belt is a foreign matter.
In some application scenarios, if foreign matters exist on the composite material belt, the laminated battery cell has a risk of self-discharge phenomenon, so that the performance of the laminated battery cell can be reduced. Therefore, it is necessary to identify abnormalities caused by foreign matter and reduce the risk of occurrence of self-discharge phenomena.
In some application scenarios, if the laminated cell manufacturing equipment determines that the to-be-detected pole piece information is not matched with the target pole piece information, the laminated cell manufacturing equipment can determine that the anomaly on the composite material belt is not a shutdown indentation, but is a foreign matter. If only one piece of target pole piece information exists and the to-be-detected cathode pole piece and the target pole piece information are different, the to-be-detected cathode pole piece and the to-be-detected target pole piece information are not matched, and then the anomaly on the composite material belt can be judged to be a foreign matter. If there are multiple pieces of target pole piece information, and the piece information to be detected is different from any one of the multiple pieces of target pole piece information, the pieces of target pole piece information and the piece information are not matched, and then the anomaly on the composite material belt can be judged to be a foreign matter.
The foreign matter may include, for example, metal scraps, raw material residual particles, and the like.
In the implementation mode, the anomaly on the composite material belt can be judged to be a foreign matter under the condition that the information of the pole piece to be detected is not matched with the information of the target pole piece, and then the phenomenon that the lamination battery core is subjected to self-discharge can be determined, so that the foreign matter needs to be removed, and the occurrence probability is reduced.
In some optional implementations, after obtaining the target pole piece information corresponding to the target cathode pole piece located at the processing position on the composite material tape in the case where the laminated cell manufacturing apparatus is stopped as described in the above step 101, the method further includes: and storing the shutdown information of the laminated cell manufacturing equipment and the target pole piece information in an associated mode.
In some application scenarios, the laminated cell manufacturing apparatus may also collect corresponding shutdown information when shutdown. The shutdown information may include, for example, information substantially related to the shutdown, such as the shutdown time, the shutdown cause, and the like.
And then, the laminated cell manufacturing equipment can store the shutdown information and the target pole piece information acquired when the battery is shutdown for the time in a correlated manner, and a corresponding relation between the shutdown information and the target pole piece information is established.
After the laminated battery cell manufacturing equipment stores the shutdown information in association with the target pole piece information, the stored information can be searched for the target pole piece information matched with the to-be-detected pole piece information, and then the shutdown information of the to-be-detected cathode pole piece can be determined according to the corresponding relation between the target pole piece information and the shutdown information, so that the tracing of the to-be-detected cathode pole piece (such as searching for the shutdown time, shutdown reasons and the like causing the abnormality of the to-be-detected cathode pole piece) is realized.
Referring to fig. 3, a flowchart of a method for manufacturing a laminated battery cell according to an embodiment of the application is shown. The manufacturing method of the laminated battery cell can comprise the following steps:
step 301, under the condition that laminated cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms;
step 302, after the laminated battery cell manufacturing equipment is restarted, under the condition that the composite material belt is abnormal, obtaining the information of the to-be-detected pole piece corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt;
Step 303, judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information;
step 304, continuing to wind the laminated battery cell under the condition that the indentation meets the indentation condition; the indentation conditions include: the indentation size is within the set size range.
Further, the implementation process of the steps 301 to 304 may be the same as or similar to that of the steps 101 to 104, which is not repeated here.
In some application scenarios, the laminated cell manufacturing method described above may be performed by a laminated cell manufacturing apparatus. The laminated cell manufacturing equipment is used for winding the composite material belt in the process of manufacturing the laminated cell so as to manufacture the laminated cell corresponding to the laminated structure.
In this embodiment, for a composite material belt including cathode pole pieces that are discontinuously arranged, it may be determined that an abnormality occurring on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information. Therefore, the shutdown indentation can be accurately judged in the winding process, and the probability of erroneously detecting the shutdown indentation as other anomalies can be reduced. And, when it detects the indentation in the set size range, the abnormality can be ignored, and then the composite tape continues to be wound, improving the winding efficiency to some extent.
In some application scenarios, if the indentation does not meet the indentation condition, the high probability of the indentation may cause the performance of the laminated battery cell to be reduced, and then the winding may be continued after the abnormality is eliminated.
In some application scenarios, the set size range of the indentation size includes: the length is below 80 mm and the indentation width is below 10 mm. Thus, if the indentation size is within the set size range, it can be considered that the abnormality can be ignored. If the indentation size is not within the set size range, the abnormality cannot be ignored and winding can be stopped.
In some application scenarios, if the piece information to be detected is not matched with the piece information to be detected, it may be determined that the anomaly on the composite material belt is a foreign object. At this time, the abnormality cannot be ignored, and winding of the composite tape may be stopped, and winding of the composite tape may be continued after the foreign matter is removed, so as to improve the performance of the laminated cell.
It should be noted that, when determining whether the pole piece information to be detected matches the target pole piece information, reference may be made to the corresponding parts in the embodiment shown in fig. 1, which is not repeated here.
In some application scenarios, after the step 301, the shutdown information of the laminated battery cell manufacturing device may be stored in association with the target pole piece information, so that the tracing of the cathode pole piece to be detected may be implemented.
In some alternative implementations, during the winding of the laminated cell, the composite tape is wound in a Z-shape; wherein, the positive pole piece is coiled continuously, the negative pole piece is coiled discontinuously.
In some application scenarios, during the winding process of the laminated battery cell, the composite material tape may be Z-shaped and wound into a corresponding Z-shaped laminated battery cell, and the specific structure thereof may be as shown in fig. 4, for example.
In other application scenarios, during the winding process, the composite material tape may also be wound into a corresponding S-shaped laminated cell in an S-shape (i.e., a winding manner opposite to that of the Z-shaped laminated cell), and the specific structure thereof may be as shown in fig. 5, for example.
In this implementation, the composite strip may be wound into a Z-lamination cell or S-lamination cell, which may be selected by those skilled in the art according to actual needs.
It will be appreciated by those skilled in the art that in the above-described method of the specific embodiment, the written order of steps is not meant to imply a strict order of execution but rather should be construed according to the function and possibly inherent logic of the steps.
Referring to fig. 6, a block diagram of an embodiment of an indentation detection apparatus is shown, where the indentation detection apparatus may be a module, a program segment, or a code on an electronic device. It will be appreciated that the apparatus corresponds to the embodiment of the method of fig. 1 described above and is capable of performing the various steps involved in the embodiment of the method of fig. 1.
Optionally, the indentation detection device is used for detecting a composite material belt of the laminated battery cell, wherein the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through a diaphragm. The device comprises a first target pole piece information acquisition module 601, a first pole piece information to be detected acquisition module 602 and a first indentation judgment module 603. The first target pole piece information obtaining module 601 is configured to obtain target pole piece information corresponding to a target cathode pole piece located at a processing position on a composite material belt under the condition that the laminated battery cell manufacturing equipment is stopped; the target cathode plate is provided with an indentation caused by shutdown; the first to-be-detected pole piece information obtaining module 602 is configured to obtain to-be-detected pole piece information corresponding to a to-be-detected cathode pole piece located at an abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted; and the first indentation determination module 603 is configured to determine that the anomaly on the composite material belt is an indentation caused by shutdown when the to-be-detected pole piece information is matched with the target pole piece information.
Optionally, the apparatus further includes a continuing processing module, where the continuing processing module includes: when the to-be-detected pole piece information is matched with the target pole piece information, after the anomaly on the composite material belt is judged to be an indentation caused by shutdown, continuing to process the composite material belt when the indentation meets an indentation condition; the indentation conditions include: the indentation size is within the set size range.
Optionally, the set size range of the indentation size includes: the length is below 80 mm and the indentation width is below 10 mm.
Optionally, the apparatus further comprises a foreign matter determination module, wherein the foreign matter determination module is configured to: and under the condition that the pole piece information to be detected is not matched with the target pole piece information, judging that the abnormality on the composite material belt is a foreign matter.
Optionally, the device further comprises a searching module, where the searching module is configured to: and under the condition that the laminated battery cell manufacturing equipment is stopped, after target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt is obtained, the stopping information of the laminated battery cell manufacturing equipment is stored in association with the target pole piece information.
It should be noted that, for convenience and brevity, a person skilled in the art will clearly understand that, for the specific working procedure of the apparatus described above, reference may be made to the corresponding procedure in the foregoing method embodiment, and the description will not be repeated here.
Referring to fig. 7, a block diagram of a laminated cell manufacturing apparatus according to an embodiment of the present application is shown, where the laminated cell manufacturing apparatus may be a module, a program segment, or a code on an electronic device. It will be appreciated that the apparatus corresponds to the embodiment of the method of fig. 3 described above and is capable of performing the various steps involved in the embodiment of the method of fig. 3.
Optionally, the laminated battery cell manufacturing apparatus includes a second target pole piece information acquisition module 701, a second to-be-inspected pole piece information acquisition module 702, a second indentation determination module 703, and a winding module 704. The second target pole piece information obtaining module 701 is configured to obtain target pole piece information corresponding to a target cathode pole piece located at a processing position on the composite material tape under a condition that the laminated battery cell manufacturing equipment is stopped during a winding process of the laminated battery cell; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms; the second to-be-detected pole piece information obtaining module 702 is configured to obtain to-be-detected pole piece information corresponding to a to-be-detected cathode pole piece located at an abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted; a second indentation determination module 703, configured to determine that the anomaly on the composite material belt is an indentation caused by shutdown when the to-be-detected pole piece information matches the target pole piece information; a winding module 704, configured to continuously wind the laminated battery cell if the indentation meets an indentation condition; the indentation conditions include: the indentation size is within the set size range.
Optionally, during the winding process of the laminated battery cell, the composite material belt is wound in a Z shape; wherein, the positive pole piece is coiled continuously, the negative pole piece is coiled discontinuously.
It should be noted that, for convenience and brevity, a person skilled in the art will clearly understand that, for the specific working procedure of the apparatus described above, reference may be made to the corresponding procedure in the foregoing method embodiment, and the description will not be repeated here.
Referring to fig. 8, a block diagram of a laminated cell manufacturing apparatus according to an embodiment of the present application is shown, where the laminated cell manufacturing apparatus corresponds to the embodiment of the method of fig. 1, and is capable of executing the steps involved in the embodiment of the method of fig. 1.
Optionally, the laminated cell manufacturing apparatus includes a controller 801 (which may be, for example, a programmable logic controller Programmable Logic Controller, abbreviated as PLC) and a charge coupled device image sensor 802 (Charge Coupled Device, abbreviated as CCD). The controller 801 is configured to obtain, under a shutdown condition, target pole piece information corresponding to a target cathode pole piece located at a processing position on the composite material belt; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms; the charge-coupled device image sensor 802 is configured to obtain, after restarting, information of a to-be-detected electrode slice corresponding to the to-be-detected cathode slice located at an abnormal position on the composite material belt under the condition that the composite material belt is abnormal; and under the condition that the pole piece information to be detected is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown.
In the embodiment, the shutdown indentation can be accurately judged through the interaction between the PLC and the CCD, so that the probability that the CCD detects the shutdown indentation as other anomalies by mistake is reduced.
It should be noted that, for convenience and brevity of description, specific working procedures of the apparatus described above may refer to corresponding procedures in the foregoing method embodiments, and will not be repeated here.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device for performing an indentation detection method according to an embodiment of the present application, where the electronic device may include: at least one processor 901, such as a CPU, at least one communication interface 902, at least one memory 903, and at least one communication bus 904. Wherein the communication bus 904 is used to enable direct connection communication of these components. The communication interface 902 of the device in the embodiment of the present application is used for performing signaling or data communication with other node devices. The memory 903 may be a high-speed RAM memory or a nonvolatile memory (non-volatile memory), such as at least one magnetic disk memory. The memory 903 may also optionally be at least one storage device located remotely from the aforementioned processor. The memory 903 has stored therein computer readable instructions which, when executed by the processor 901, may cause the electronic device to perform the method processes described above with respect to fig. 1 or 3.
It will be appreciated that the configuration shown in fig. 9 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 9, or have a different configuration than shown in fig. 9. The components shown in fig. 9 may be implemented in hardware, software, or a combination thereof.
Embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is capable of performing a method procedure performed by an electronic device in an embodiment of the method as shown in fig. 1 or fig. 3.
Embodiments of the present application provide a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the execution of the methods provided by the method embodiments described above, e.g. the method may comprise: under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown; after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt; and under the condition that the to-be-detected pole piece information is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
Further, the units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, functional modules in various embodiments of the present application may be integrated together to form a single portion, or each module may exist alone, or two or more modules may be integrated to form a single portion.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (12)
1. The indentation detection method is characterized by being used for detecting a composite material belt of a laminated battery cell, wherein the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through a diaphragm; the method comprises the following steps:
under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown;
After restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt;
and under the condition that the to-be-detected pole piece information is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown.
2. The method according to claim 1, wherein, in the case where the piece information to be inspected matches the target piece information, after determining that the anomaly on the composite web is an impression caused by a shutdown, the method further comprises:
continuing to process the composite strip if the indentations meet the indentation conditions; the indentation conditions include: the indentation size is within the set size range.
3. The method of claim 2, wherein the set size range of indentation sizes comprises: the length is below 80 mm and the indentation width is below 10 mm.
4. A method according to any one of claims 1-3, wherein the method further comprises:
and under the condition that the pole piece information to be detected is not matched with the target pole piece information, judging that the abnormality on the composite material belt is a foreign matter.
5. A method according to any one of claims 1-3, wherein after the obtaining target pole piece information corresponding to a target cathode pole piece located at a processing position on the composite strip, the method further comprises:
and storing the shutdown information of the laminated cell manufacturing equipment and the target pole piece information in an associated mode.
6. A method of manufacturing a laminated cell, the method comprising:
under the condition that the laminated battery cell manufacturing equipment is stopped, acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on a composite material belt; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms;
after restarting the laminated battery cell manufacturing equipment, under the condition that the composite material belt is abnormal, acquiring to-be-detected pole piece information corresponding to-be-detected cathode pole pieces positioned at abnormal positions on the composite material belt;
judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information;
Continuing winding the laminated battery cell under the condition that the indentation meets the indentation condition; the indentation conditions include: the indentation size is within the set size range.
7. The method of claim 6, wherein during the lamination cell winding, the composite tape is wound in a Z-shape; wherein, the positive pole piece is coiled continuously, the negative pole piece is coiled discontinuously.
8. The indentation detection device is characterized by being used for detecting a composite material belt of a laminated battery cell, wherein the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through a diaphragm; the device comprises:
the first target pole piece information acquisition module is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition that the laminated battery cell manufacturing equipment is stopped; the target cathode plate is provided with an indentation caused by shutdown;
the first to-be-detected pole piece information acquisition module is used for acquiring to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at an abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted;
And the first indentation judging module is used for judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information.
9. A laminated cell manufacturing apparatus, the apparatus comprising:
the second target pole piece information acquisition module is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition that the laminated battery cell manufacturing equipment is stopped; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms;
the second to-be-detected pole piece information acquisition module is used for acquiring to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt under the condition that the composite material belt is abnormal after the laminated cell manufacturing equipment is restarted;
the second indentation judging module is used for judging that the abnormality on the composite material belt is an indentation caused by shutdown under the condition that the pole piece information to be detected is matched with the target pole piece information;
The winding module is used for continuously winding the laminated battery cell under the condition that the indentation meets the indentation condition; the indentation conditions include: the indentation size is within the set size range.
10. A laminated cell manufacturing apparatus, the apparatus comprising:
the controller is used for acquiring target pole piece information corresponding to a target cathode pole piece positioned at a processing position on the composite material belt under the condition of stopping; the target cathode plate is provided with an indentation caused by shutdown; the composite material belt comprises an anode pole piece and a plurality of cathode pole pieces which are discontinuously arranged, and the cathode pole pieces are separated from the anode pole pieces through diaphragms;
the charge-coupled device image sensor is used for acquiring the to-be-detected pole piece information corresponding to the to-be-detected cathode pole piece positioned at the abnormal position on the composite material belt under the condition that the composite material belt is abnormal after restarting; and
and under the condition that the to-be-detected pole piece information is matched with the target pole piece information, judging that the abnormality on the composite material belt is an indentation caused by shutdown.
11. An electronic device comprising a processor and a memory storing computer readable instructions that, when executed by the processor, perform the method of any of claims 1-5 or 6-7.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, performs the method according to any of claims 1-5 or 6-7.
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